summaryrefslogtreecommitdiffstats
path: root/arch/sh/mm/mmap.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-11-26 08:22:50 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-26 08:22:50 +0100
commit7fbb8759eff9a348efa5f352ffaa51c364837c4b (patch)
treed40cd3f47b9f667ba94d9613270132080dcb6a1a /arch/sh/mm/mmap.c
parent6003ab0bad4cc56f3c4fadf62a0d23a967b9c53b (diff)
parent13d428afc007fcfcd6deeb215618f54cf9c0cae6 (diff)
Merge commit 'v2.6.28-rc6' into core/debug
Diffstat (limited to 'arch/sh/mm/mmap.c')
-rw-r--r--arch/sh/mm/mmap.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
new file mode 100644
index 00000000000..8837d511710
--- /dev/null
+++ b/arch/sh/mm/mmap.c
@@ -0,0 +1,31 @@
+/*
+ * arch/sh/mm/mmap.c
+ *
+ * Copyright (C) 2008 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <asm/page.h>
+
+/*
+ * You really shouldn't be using read() or write() on /dev/mem. This
+ * might go away in the future.
+ */
+int valid_phys_addr_range(unsigned long addr, size_t count)
+{
+ if (addr < __MEMORY_START)
+ return 0;
+ if (addr + count > __pa(high_memory))
+ return 0;
+
+ return 1;
+}
+
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
+{
+ return 1;
+}